Executive Summary

Informations
Name CVE-2023-2236 First vendor Publication 2023-05-01
Vendor Cve Last vendor Modification 2023-08-11

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.

Both¬ io_install_fixed_file¬ and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability.

We recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2236

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-416 Use After Free

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Application 5
Os 3479

Sources (Detail)

Source Url
MISC https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id...
https://kernel.dance/9d94c04c0db024922e886c9fd429659f22f48ea4
https://security.netapp.com/advisory/ntap-20230601-0010/

Alert History

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Date Informations
2023-09-05 13:38:17
  • Multiple Updates
2023-09-05 01:28:30
  • Multiple Updates
2023-09-02 13:36:09
  • Multiple Updates
2023-09-02 01:28:58
  • Multiple Updates
2023-08-12 05:27:45
  • Multiple Updates
2023-08-12 01:28:13
  • Multiple Updates
2023-08-11 13:33:06
  • Multiple Updates
2023-08-11 01:29:04
  • Multiple Updates
2023-08-06 13:30:30
  • Multiple Updates
2023-08-06 01:27:52
  • Multiple Updates
2023-08-04 13:31:00
  • Multiple Updates
2023-08-04 01:28:14
  • Multiple Updates
2023-07-14 13:30:50
  • Multiple Updates
2023-07-14 01:27:53
  • Multiple Updates
2023-06-06 09:27:35
  • Multiple Updates
2023-06-01 21:27:43
  • Multiple Updates
2023-05-17 13:12:45
  • Multiple Updates
2023-05-06 09:27:21
  • Multiple Updates
2023-05-01 17:27:14
  • First insertion